SENGO-CAM study is a sham-controlled simple blind trial which aim is to study the efficacy of great occipital nerve stimulation (GONS) associated with medication withdrawal in the treatment of medication overuse headache occurring in migraine patients.

Further study details as provided by Centre Hospitalier Universitaire de Nice:

Primary Outcome Measures:

Primary endpoint will be the comparison of the rate of headache-free patients, fourteen days after medication withdrawal, in both groups (GONS versus sham) [ Time Frame: 14 days ] [ Designated as safety issue: No ]

Secondary Outcome Measures:

number of headache days during the 14 days withdrawal period [ Time Frame: 14 days ] [ Designated as safety issue: No ]

maximal intensity and duration of rebound headache [ Time Frame: 14 days ] [ Designated as safety issue: No ]

rescue medication used [ Time Frame: 14 days ] [ Designated as safety issue: No ]

withdrawal facility perceived by the patient [ Time Frame: 14 days ] [ Designated as safety issue: No ]

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Please refer to this study by its ClinicalTrials.gov identifier: NCT01184222